| 摘要 |
Apparatus for forming a plastics coated metal tube comprising means for forming a continuous strip of metal into a U-shape and a forming sleeve for folding the strip into an overlapping tube. A mandrel is also provided which extends through the forming sleeve and through a locating sleeve. The locating sleeve centralizes the tube as it passes over the mandrel and welding means are provided for welding the overlapping tube as it passes through the locating sleeve. Both the forming sleeve and the locating sleeve are mounted on the mandrel so as to float with the mandrel. |
